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JavaScript object notation | Web Basics

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JSON’s full form is JavaScript Object Notation. It is used to transport data in text format. A simple example of JSON is:-

'{"name":"John", "age":70, "city":NY}'

This is an object with 3 properties:- name, age, and city. Where Each property has a value.

JavaScript code access the data as an object:-

let Name =;
let Age = obj.age; 

An important method of JSON in JavaScript

JSON.parse(): for converting JSON strings into JavaScript objects:

JSON.stringify(): for converting an object into a JSON string:

JavaScript object notation example

Simple example code in HTML.

<!DOCTYPE html>


    var obj = '{"name":"John", "age":70, "city":"NY"}';

    var json = JSON.parse(obj);





JavaScript object notation

Why Use JSON?

Answer: It is commonly used for transmitting data in web applications (e.g., sending some data from the server to the client, so it can be displayed on a web page, or vice versa).

Read more:

Do comment if you have any doubts or suggestions on this JS object topic.

Note: The All JS Examples codes are tested on the Firefox browser and the Chrome browser.

OS: Windows 10

Code: HTML 5 Version

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